Unsolved Recalbox 7.2.1 beta 3 and PSX games not loading

[RustyMG]

Hi,
Have over 150 games on my Pi3 Recalbox 7.1 install in .pbp format, all working fine.
Copied a few over to the new beta install to try with my Dolphinbar Wiimote setup (I havent tried them on v7.2) and none load.

All 3 bios files mentioned in the new readme I already had in lower case and have the green "thumbs up", and the md5's all match as required -
I double checked them thru http://onlinemd5.com/

Any ideas as to what is possibly wrong ? A known issue in the beta?
Thanks.

[RustyMG]

Been doing some more checking.
It appears that only my PAL / European games are loading, so I'm thinking something has changed in Recalbox with the USA bios requirements ?

[Zing]

@rustymg Please, questions related to Beta 7.2.1, should be posted in the topic:
https://forum.recalbox.com/topic/24142/recalbox-7-2-1-beta3-public-release